1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergij07 [2.7K]
4 years ago
6

Rational Equations help!

Mathematics
2 answers:
sattari [20]4 years ago
6 0

Answer:

D

Step-by-step explanation:

To find the length of board subtract the piece cut from the length of board

\frac{7}{x-2} - \frac{3}{x+2}

Before subtracting the fractions we require them to have a common denominator.

Multiply the numerator/denominator of the first fraction by (x + 2)

Multiply the numerator/denominator of the second fraction by (x - 2)

= \frac{7(x+2)}{(x-2)(x+2)} - \frac{3(x-2)}{(x-2)(x+2)}

Distribute the numerators leaving the denominator

= \frac{7x+14-3x+6}{(x-2)(x+2)}

= \frac{4x+20}{(x-2)(x+2)}

sladkih [1.3K]4 years ago
6 0
<h2>Answer:</h2>

<u>The correct option is</u><u> D</u>

<h2>Step-by-step explanation:</h2>

See the attached image for solution

You might be interested in
For cones with radius 6 units, the equation V = 127th relates the height h of the cone, in units, and the volume V of the cone,
denis-greek [22]

Answer:

hola

Step-by-step explanation:

cómo estás yo bien compita

6 1
3 years ago
Read 2 more answers
Anyone plz show how to work it out step by step.​
In-s [12.5K]

Answer:

168cm^3

Step-by-step explanation:

Q to P is going to be 3cm. it is identical to the length T to U.

R to T , W to Q, S to U is going to be identical to P to V. P to V has been identified as 12 cm.

in the middle of the shape, there are 4 identical triangles. the height time length will give us the area of that one shape:

e.g for shape P to V to W to Q and back to P is one rectangle. the length is 12 cm and the width is 3 cm.

12 x 3= 36

36cm^3 is one rectangles surface area, we have 4 identical triangles that means we need to times 36 by 4.

so 36x4=144.

now on the left and right side, we have two squares. on the right, we have T to U to V to W back to T this has the height of 3 width of 4 then we do 3 X 4 which is 12, we times it by 2 because we have two identical squares.

12 X 2=24

finally we add 24 and 144 = 168cm^3.

hope this helps :)

6 0
3 years ago
A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position?
Anarel [89]
550 feet below sea level
3 0
3 years ago
Read 2 more answers
a punch recipe calls for 3 liters ginger ale, 1.5 liters tropical fruit juice. and 500 milliliters pineapple juice. how much pun
Fudgin [204]

Answer

189

Step-by-step explanation:

just is

5 0
3 years ago
Solve for k in the proportion.<br> 3/2 = 51/k K= ?
lozanna [386]

Answer:

4

Step-by-step explanation:

2+2=4 so it's 4 because she can't even

7 0
3 years ago
Other questions:
  • X + (2x + 5) = 3(x – 4)+7
    9·1 answer
  • Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)?
    13·2 answers
  • NEED HELP ASSAP 100 POINTS WILLL GIVE BRAINLIEST1Give me an example of how supply or demand affects price in the real world. 2Ho
    7·1 answer
  • Three runners competed in a race. Data were collected at each mile mark for
    10·2 answers
  • Help 5 minutes to turn in
    13·2 answers
  • Derrick is training for a race he wants to run a total of 100 miles over 4 weeks he only runs 16 miles in the first week if he r
    14·1 answer
  • What is the greatest common factor of 12 and 30?<br> 2<br> 3 <br> 6 <br> 12
    10·2 answers
  • Complete the statements about the graph.
    8·1 answer
  • Reflect (2.5,4.5) in the x-axis.
    15·1 answer
  • A bag containing food has mass 3.813 kg. When the bag is empty its mass is 257 g. Find in kilograms the mass of the fruit
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!